JavaFX 1：bind 和 var 访问修饰符

发布于 2024-07-21 07:03:02 字数 414 浏览 11 评论 0原文

 var width = 400;
 var height = 400;

Stage {
    style: StageStyle.TRANSPARENT

    onClose: function():Void {
       System.exit(0);
    }

    scene: Scene {
        content: Scribble {}
        width: width
        height: bind height
    }
}

为什么宽度有效，但高度无效？而且，我能做些什么来解决这个问题？ Netbeans 说：

height 在 javafx.scene.Scene 中仅具有脚本（默认）绑定访问权限

原文

 var width = 400;
 var height = 400;

Stage {
    style: StageStyle.TRANSPARENT

    onClose: function():Void {
       System.exit(0);
    }

    scene: Scene {
        content: Scribble {}
        width: width
        height: bind height
    }
}

Why does the width work, but the height not?
And, what can I do to fix this? Netbeans is saying:

height has script only(default) bind access in javafx.scene.Scene

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温馨耳语 2024-07-28 07:03:02

好吧，我想通了：

var width : Number = 400;
var height : Number = 400;

var stage:Stage = Stage {
    width: bind width with inverse
    height: bind width with inverse
    scene: Scene {
      content: Scribble {
                 canvasWidth: bind stage.scene.width
                 canvasHeight: bind stage.scene.height
               }
    }
}

虽然，我真的不需要在这里指定宽度和高度，因为我可以通过阶段变量访问它们。当舞台宽度和高度发生变化时，场景宽度和高度也会更新。我发现，当绑定到场景宽度和高度而不是绑定到 var 宽度和高度时，canvasWidth 会更新得更好（只有在调整大小完成后才会更新）

Ok, I figured it out:

var width : Number = 400;
var height : Number = 400;

var stage:Stage = Stage {
    width: bind width with inverse
    height: bind width with inverse
    scene: Scene {
      content: Scribble {
                 canvasWidth: bind stage.scene.width
                 canvasHeight: bind stage.scene.height
               }
    }
}

Although, I don't really need to specify the width and height here, because I can access these through the stage variable. The scene width and height updates when the stage width and height changes. I've found that the canvasWidth will update a lot better when bound to the scene width and height rather than to the var width and height (which only update once the resize is complete)

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